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您的检索式：作者名="BAI ZhengHe"
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| 1 | Physics issues in diffraction limited storage ring design显示文摘Diffraction limited electron storage ring is considered a promising candidate for future light sources,whose main characteristics are higher brilliance,better transverse coherence and better stability.The challenge of diffraction limited storage ring design is how to achieve the ultra low beam emittance with acceptable nonlinear performance.Effective linear and nonlinear parameter optimization methods based on Artificial Intelligence were developed for the storage ring physical design.As an example of application,partial physical design of HALS(Hefei Advanced Light Source),which is a diffraction limited VUV and soft X-ray light source,was introduced.Severe emittance growth due to the Intra Beam Scattering effect,which is the main obstacle to achieve ultra low emittance,was estimated quantitatively and possible cures were discussed.It is inspiring that better performance of diffraction limited storage ring can be achieved in principle with careful parameter optimization. | FAN Wei BAI ZhengHe GAO WeiWei FENG GuangYao LI WeiMin WANG Lin HE DuoHui | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，5： | 2 |
| 2 | High-Q collective Mie resonances in monocrystalline silicon nanoantenna arrays for the visible light显示文摘Dielectric optical antennas have emerged as a promising nanophotonic architecture for manipulating the propagation and localization of light.However,the optically induced Mie resonances in an isolated nanoantenna are normally with broad spectra and poor��-factors,limiting their performances in sensing,lasing,and nonlinear optics.Here,we dramatically enhance the��-factors of Mie resonances in silicon(Si)nanoparticles across the optical band by arranging the nanoparticles in a periodic lattice.We select monocrystalline Si with negligible material losses and develop a unique method to fabricate nanoparticle arrays on a quartz substrate.By extinction dispersion measurements and electromagnetic analysis,we can identify three types of collective Mie resonances with��-factors∼500 in the same nanocylinder arrays,including surface lattice resonances,bound states in the continuum,and quasi-guided modes.Our work paves the way for fundamental research in strong light-matter interactions and the design of highly efficient light-emitting metasurfaces. | Zhenghe Zhang Pengbo Liu Wanli Lu Ping Bai Bingchang Zhang Zefeng Chen Stefan A.Maier Jaime Gómez Rivas Shaojun Wang Xiaofeng Li | 2023 | Fundamental Research2023，3，5： | 0 |
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